According to sources, which were pretty matter-of-fact about the 36-year-old actress and her 38-year-old brother having "zero relationship" with their dad, the two aren't putting up much of a protest to this news:

"They don't care and are not surprised by this. It's been this way, and he's been saying this stuff forever."

Another source gave a little more insight into the family sitch:

"They weren't surprised at all that Bill spoke out. He's always trying to clear his name and his image."

The kids, of course, see Kurt Russell as their father, since he's really the only dad they've ever known.

And while Bill's comments were pretty harsh about his children being "dead" to him, at least the blow was softened by it seeming like Oliver and Kate expected the news.

What do U think about the family feud — do you focus on family no matter what, or was it right to cut ties?!